Radio Shack 20-006A Manuale utente

RadioShack is a trademark used by Tandy Corporation.

Cat. No. 20-006A

Telescoping Antenna for Portable Scanners

and Walkie Talkies

You can use this telescoping antenna for either receiving or transmitting. You can

use it as a

receiving

antenna from 25 MHz through the 1296 MHz Ham Band, and

you can use it as a 1/4wavelength

transmitting

antenna from 130 MHz through 535

MHz.

USING THE ANTENNA FOR TRANSMITTING

For transmitting, you must set the antenna length as close as possible to the trans-

mitting frequency’s 1/4wavelength. This ensures the best possible transmission by

using the proper standing wave ratio (SWR).

Cautions:

• When you use the antenna to transmit, you must always collapse the section

located just above the loading coil. If you do not, you might damage the

antenna and/or your radio.

• When you use the antenna to transmit, you must calculate the 1/4wavelength

and adjust the antenna length accordingly. If you do not do this, you can dam-

age your transmitting equipment due to an improper standing wave ratio

(SWR).

Use this formula to calculate the proper length for a 1/4wavelength transmitting an-

tenna:

2834

Freq. in MHz = Antenna Length in Inches

Example: 2834

147 (MHz) =19.3 Inches

20-006.fm Page 1 Tuesday, August 3, 1999 2:25 PM

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

9A6 Printed in Taiwan

USING THE ANTENNA FOR RECEIVING

For the best reception, adjust the antenna length as shown below.

Frequency Antenna Length

25–50 MHz (VHF Low)

50–54 MHz (Ham)

108–136 MHz (Aircraft) Extend All Nine Sections

138–144 MHz (Government)

144–148 MHz (Ham)

148–174 MHz (VHF Hi

h) Extend Only the Top Four Sections

220 MHz (Ham)

380–450 MHz (UHF Low)

470–512 MHz (UHF TV)

800–900 MHz

1296 MHz (Ham)

Extend Only 1 to 3 Lower Sections

RadioShack Limited Warranty

This product is warranted against defects for 90 days from date of purchase from

RadioShack company-owned stores and authorized RadioShack franchisees and deal-

ers. Within this period, we will repair it without charge for parts and labor. Simply bring

your RadioShack sales slip as proof of purchase date to any RadioShack store. War-

ranty does not cover transportation costs. Nor does it cover a product subjected to mis-

use or accidental damage.

EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES

AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION

OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states do

not permit limitation or exclusion of implied warranties; therefore, the aforesaid limita-

tion(s) or exclusion(s) may not apply to the purchaser.

This warranty

ives you specific le

al ri

hts and you may also have other ri

hts which vary from

state to state.

We Service What We Sell

10/95

20-006.fm Page 2 Tuesday, August 3, 1999 2:25 PM

20-006.fm Page 3 Tuesday, August 3, 1999 2:25 PM

20-006.fm Page 4 Tuesday, August 3, 1999 2:25 PM

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